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VLDB
1994
ACM
129views Database» more  VLDB 1994»
15 years 10 months ago
Hilbert R-tree: An Improved R-tree using Fractals
We propose a new R-tree structure that outperforms all the older ones. The heart of the idea is to facilitate the deferred splitting approach in R-trees. This is done by proposing...
Ibrahim Kamel, Christos Faloutsos
ATAL
2006
Springer
15 years 10 months ago
A hierarchical approach to efficient reinforcement learning in deterministic domains
Factored representations, model-based learning, and hierarchies are well-studied techniques for improving the learning efficiency of reinforcement-learning algorithms in large-sca...
Carlos Diuk, Alexander L. Strehl, Michael L. Littm...
ATAL
2006
Springer
15 years 10 months ago
False-name-proof combinatorial auction protocol: Groves Mechanism with SubModular Approximation
This paper develops a new combinatorial auction protocol called the Groves Mechanism with SubModular Approximation (GM-SMA). This protocol satisfies the following characteristics:...
Makoto Yokoo, Toshihiro Matsutani, Atsushi Iwasaki
GECCO
2006
Springer
188views Optimization» more  GECCO 2006»
15 years 10 months ago
Dynamic multi-objective optimization with evolutionary algorithms: a forward-looking approach
This work describes a forward-looking approach for the solution of dynamic (time-changing) problems using evolutionary algorithms. The main idea of the proposed method is to combi...
Iason Hatzakis, David Wallace
ADBIS
2000
Springer
117views Database» more  ADBIS 2000»
15 years 10 months ago
Multiversion Linear Quadtree for Spatio-Temporal Data
Research in spatio-temporal databases has largely focused on extensions of access methods for the proper handling of time changing spatial information. In this paper, we present th...
Theodoros Tzouramanis, Michael Vassilakopoulos, Ya...